- April 17, 2013: A bipartisan-drafted bill to expand background checks and ban assault weapons fails in the Senate.
- July 2015: Bill to require background checks for all gun sales is introduced in House of Representatives. It is not brought to a vote.
- June 12, 2016: Orlando shooting. Barack Obama calls on Congress to renew law prohibiting sale of assault-style weapons and high-capacity magazines.
- October 1, 2017: Las Vegas shooting. US lawmakers call for banning bump-fire stocks, and some renew call for assault weapons ban.
- February 14, 2018: Seventeen pupils are killed and 17 are wounded during a mass shooting in Parkland, Florida.
- December 18, 2018: Donald Trump announces a ban on bump-fire stocks.
- August 2019: US House passes law expanding background checks. It is not brought to a vote in the Senate.
- April 11, 2022: Joe Biden announces measures to crack down on hard-to-trace 'ghost guns'.
- May 24, 2022: Nineteen children and two teachers are killed at an elementary school in Uvalde, Texas.
- June 25, 2022: Joe Biden signs into law the first federal gun-control bill in decades.